I have just added several more .de domains into my web domains portfolio.

eQuotes.de
e-Quotes.de

I think 'e' and 'e-' domains have some value in Germany. 

It is very hard to find available 'e' and 'e-' single word domain especially single words that have very high search volume and high CPC with lots of advertisers.

"Quotes" have very high search volume of 2.24 Million globally (3600 in Germany)

"Quotes" have high Cost Per Click (CPC) of over $25 !

Past high sales history of 'e' and 'e-' single word domains with .de extension:

e-Business-de $16,206
e-Game.de $6,365

PS: For some reasons, domains with hyphen for .de CCTLD have some value like free-sms.de sold for hundreds of thousands dollars weeks ago.